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When the rails app is deployed on Heroku (git push heroku master)
The following error message occurred:
remote:!
remote:! Could not detect rake tasks
remote:! ensure you can run `$bundle exec rake -P` against your app
remote:! and using the production group of your Gemfile.
remote:! Activating bundler (2.0.1) failed:
remote:! Could not find 'bundler' (2.0.1) required by your /tmp/build_a5a1935abed158bbe82fd9d1750698db/Gemfile.lock.
remote:! To update to the latest version installed on your system, run `bundle update --bundler`.
remote:! To install the missing version, run `gem install bundler: 2.0.1`
remote:! Checked in 'GEM_PATH = vendor/bundle/ruby / 2.5.0', execute `gem env` for more information
remote:!
remote:! To install the version of bundler this project requires, run `gem install bundler -v '2.0.1'`
remote:!
As far as I see the error message, it says that I want to change the bundler version to 2.0.1, but
BUNDLED WITH
2.0.1
So I am confused.
When you rungit push heroku master
$git push heroku master
Enumerating objects: 198, done.
Counting objects: 100% (198/198), done.
Delta compression using up to 4 threads
Compressing objects: 100% (169/169), done.
Writing objects: 100% (198/198), 48.33 KiB | 1.24 MiB/s, done.
Total 198 (delta 24), reused 0 (delta 0)
remote: Compressing source files ... done.
remote: Building source:
remote:
remote:! Warning: Multiple default buildpacks reported the ability to handle this app.The first buildpack in the list below will be used.
remote: Detected buildpacks: Ruby, Node.js
remote: See https://devcenter.heroku.com/articles/buildpacks#buildpack-detect-order
remote: ----->Ruby app detected
remote: ----->Compiling Ruby/Rails
remote: ----->Using Ruby version: ruby-2.5.1
remote: ----->Installing dependencies using bundler 2.0.2
remote: Running: bundle install --without development: test --path vendor/bundle --binstubs vendor/bundle/bin -j4 --deployment
remote: The dependency tzinfo-data (>= 0) will be unused by any of the platforms Bundler is installing for. To add those platforms to the bundle, run `bundle lock --add-platform x86-mingw32 x86-mswin32 x64-mingw32 java`.
remote: Fetching gem metadata from https: //rubygems.org/............Installing dependencies using bundler 2.0.2may be a problem
It cannot be resolved.
Thank you Professor Prof. Takataka.
Uninstall bundler
Supplemental information (FW/tool version etc.)ruby 2.5.1
rails 5.2.3
-
Answer # 1
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[memo] Could not find 'bundler' (2.0.1) at Heroku
https://qiita.com/amuyikam/items/989300248f471020ca18